2018 Docker Community Awards

 

 

The Docker community has been at the heart of Docker’s success from the start. We are constantly in awe of the dedication and passion of the practitioners – users, customers, partners, contributors and maintainers – who make up our community. Early in December at DockerCon Barcelona we were humbled to honor a Docker Captain and a few very special Community Leaders whose activities over the past year have made a tremendous difference to us all. Together, the Docker Community has achieved so much, we can’t wait to see what 2019 has in store.

Tip of the Captains Hat Award

Bret Fisher

 

Docker Captain (and Community Leader) Bret Fisher was nominated to receive this inaugural award by his fellow Captains because his contribution and leadership serve as an example of what it means to be a Docker Captain. Bret teaches Docker to thousands of people through his Docker Mastery online course, conference workshops, and ask-me-anythings on YouTube Live. He is accessible and constantly sharing knowledge with the community and the Captains, and he helps drive improvements up and down the software stack of both Docker open source and Docker commercial products. In Bret’s own words:

“I’m so proud Continue reading

Whither Network Engineering? (Part 2)

In the first post of this series at the turn of 2019, I considered the forces I think will cause network engineering to radically change. What about the timing of these changes? I hear a lot of people say” “this stuff isn’t coming for twenty years or more, so don’t worry about it… there is plenty of time to adapt.” This optimism seems completely misplaced to me. Markets and ideas are like that old house you pass all the time—you know the one. No-one has maintained it for years, but it is so … solid. It was built out of the best timber, by people who knew what they were doing. The foundation is deep, and it has lasted all these years.

Then one day you pass a heap of wood on the side of the road and realize—this is that old house that seemed so solid just a few days ago. Sometime in the night, that house that was so solid collapsed. The outer shell was covering up a lot of inner rot. Kuhn, in The Structure of Scientific Revolutions, argues this is the way ideas always go. They appear to be solid one day, and then Continue reading

Emerging Technologies: Bridging the Digital Gap in Africa

With all the excitement about the role of technology in contributing to social change and improved development outcomes across Africa, it is easy to forget that only 11% of the world’s Internet subscribers are Africans, while only 35.2% of Africans use the Internet. An effective science and innovation system in any country, and globally, I believe, depends on strong basic research and higher education infrastructure. In addition to knowledge production, basic research facilities, development of human resources, and applications are critical. But in the course of conducting, applying, and managing research, both researchers and managers of research and innovation have information needs. These needs must be satisfied in order for the scientists and the science innovation system to function effectively.

My recent participation at the 13th Internet Governance Forum (IGF) in Paris as a Youth@IGF Fellows brought me closer to the realization that technology has really increased the speed and reach of information everywhere – and now to communities in Africa.

Africa is leapfrogging information and communication technology development, which is also fueled by mobile broadband, but there are also worrying trends, such as a growing the digital divide between men and women, and between urban and rural areas.

Continue reading

Zimbabwe Chapter Meetup on IoT: Converse / Create / Collaborate

On December 6th 2018, the Internet Society Zimbabwe Chapter held an Internet of Things (IoT) meetup supported by the Beyond the Net Small Grants, a programme intented to assist the Internet Society Chapters with financial support to organize initiatives that contribute to the development of their communities.

An exciting convening brought together Zimbabweans with a keen interest in solving some of the pressing issues facing the country using IoT. The meetup was a drive by the Zimbabwe Chapter to create a platform for conversations around IoT security and the potential benefits of Internet-connected devices. More so, it sought to harness innovation potential by creating a space for IoT creativity and collaboration. It ran under the tagline “Converse/Create/Collaborate.”

The meetup was engineered on the basis that in order to push the IoT Security agenda forward there is need to use a multistakeholder approach. The first section of the meetup was a conversation on the subject matter through a keynote presentation and a panel discussion. Solomon Kembo gave the keynote talk and really set the pace on what IoT was and how it would solve most of our challenges in society. He also talked about the IoT projects that the Continue reading

10 things the perfect IoT battery should do

As everyone who carries a mobile phone has no doubt already learned the hard way, even the most sophisticated devices can be hobbled by a lack of power. And those power issues are especially problematic when it comes to the Internet of Things (IoT), where many IoT devices exist in hard-to-reach locations with little access to external power sources.Whether implanted in a cardiac patient’s heart or a climate-monitoring installation in a remote rain forest, many IoT devices must rely on internal batteries for a long, long time.That means IoT devices need two things: High-capacity batteries that hold sufficient power to run the device in a small space, and with a long shelf life so they don’t lose that power over time Power-efficiency improvements so they consume less of that precious battery juice [ Also see our list of the most powerful Internet of Things companies and learn about the Industrial Internet of Things. | Get regularly scheduled insights by signing up for Network World newsletters. ] IoT batteries getting a lot of attention To a large extent, the IoT’s ability to work in difficult-to-reach locations will depend on how well those two requirements are met in the coming Continue reading

Cisco Champion for 2019

Again I made it to the list of Cisco Champions, making this the second year in a row! I am so glad that my effort to give back to the community and to all my networking fellows out there paid off again in the shape of this recognition from Cisco. This badge is only a small thing, relating to all the community connections and sharing that my involvement with networking community via social media and this blog, made possible. It only pushes me to get even more done in the future. In 2018 I was involved in a few very challenging new

The post Cisco Champion for 2019 appeared first on How Does Internet Work.

Un triste début d’année pour le Congo

À peine la page du calendrier tournée que nous constatons plus de troubles sur Internet.

Aujourd’hui, Cloudflare peut confirmer, chiffres à l’appui, qu’Internet a été coupé en République Démocratique du Congo, information précédemment révélée par de multiples organes de presse. Cette coupure a eu lieu alors que se déroulait l’élection présidentielle le 30 Décembre dernier, et perdure pendant la publication des résultats.

Tristement, cette situation est loin d’être une nouveauté. Nous avons fait état d'événements similaires par le passé, y compris lors d’une autre coupure d’Internet en RDC il y a moins d’un an. Une courbe malheureusement bien familière est aujourd’hui visible sur notre plateforme de gestion du réseau, montrant que le trafic dans le pays atteint péniblement un quart de son niveau habituel.

Notez que le diagramme est gradué en temps UTC, et que la capitale de la RDC Kinshasa est dans le fuseau horaire GMT+1.

La chute du trafic a démarré en milieu de journée le 31 Décembre 2018 (à environ 10h30 UTC, soit 11h30 heure locale à Kinshasa). Celà est d’autant plus frappant quand sont superposées toutes les courbes quotidiennes:

Ci-dessus, la courbe rouge représente le trafic du 31 Décembre, et les courbes grises celui des 8 Continue reading

Sad start to the new year in the Democratic Republic of the Congo

The calendar has barely flipped to 2019 and already we’re seeing Internet disruptions.

Today, Cloudflare can quantitatively confirm that Internet access has been shut down in the Democratic Republic of the Congo, information already reported by many press organisations. This shutdown occurred as the presidential election was taking place on December the 30th, and continues as the results are published.

Sadly, this act is far from unprecedented. We have published many posts about events like this in the past, including a different post about roughly three days of Internet disruption in the Democratic Republic of the Congo less than a year ago. A painfully familiar shape can be seen on our network monitoring platform, showing that the traffic in the country is barely reaching a quarter of its typical level:

Note that the graph is based on UTC and Democratic Republic of the Congo’s capital Kinshasa has the timezone of GMT+1.

The drop in bandwidth started just before midday on 31 December 2018 (around 10:30 UTC, 11:30 local time in Kinshasa). This can be clearly seen if we overlay each 24 hour day over each other:

The red line is 31 December, the gray lines the previous eight days. Looking Continue reading

Kernel of Truth episode 10: 2019 predictions

Subscribe to Kernel of Truth on iTunes, Google Play, Spotify, Cast Box and Sticher!

Click here for our previous episode.

As we enter the year, many, if not most, organizations have already been engaging in 2019 planning and strategizing. With that in mind, we thought what better way to wrap up our first season of Kernel of Truth than with an episode dedicated to trends and predictions straight from the brains of some of Cumulus’ brightest — CTO and Co-founder, JR Rivers, TME manager Pete Lumbis, and consultant David Marshall.

Join as we as discuss EVPN, virtualization, keeping up with the demands of digital transformation and more. This will be our last episode of the season, with our next season kicking off later this month.

Guest Bios

JR Rivers: JR is a co-founder and CTO of Cumulus Networks where he works on company, technology, and product direction. JR’s early involvement in home-grown networking at Google and as the VP of System Architecture for Cisco’s Unified Computing System both helped fine tunehis perspective on networking for the modern datacenter. Follow him on Twitter at @JRCumulus

Pete Lumbis: Pete is a Technical Marketing Engineer at Cumulus Networks. He helps Continue reading

2018 was a good and busy year ! Things I have done during the last year

2018 is done! I wanted to share what I have done during the last year.   During 2018, probably the biggest decision for me was establishing a company in Turkey.   This photo was taken during a CCDE Bootcamp 10 days after I opened an office in Istanbul. Before I established an Office, I was …

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The post 2018 was a good and busy year ! Things I have done during the last year appeared first on Cisco Network Design and Architecture | CCDE Bootcamp | orhanergun.net.

Asterisk on Raspberry Pi

RaspPBX is a project which brings the free and open source Asterisk and FreePBX into Raspberry Pi board. RaspPBX turns Pi into a communications server which can be used by small businesses with up to 12 extensions. FreePBX is a web-based open source GUI  that controls and manages Asterisk. Our goal is to show installation of the latest RaspPBX into Raspberry Pi 3 Model B Rev 1.2.

The latest image available for download includes Asterisk 13.20.0 and FreePBX 14.0.2.10.

1. Download, Extract and Copy RaspPBX Image to SD Card

$ wget http://download.raspberry-asterisk.org/raspbx-04-04-2018.zip
$ sudo dd bs=4M if=raspbx-04-04-2018.img of=/dev/mmcblk0 status=progress conv=fsync
$ unzip raspbx-04-04-2018.zip

2. Utilize all space on your SD card

By default the image utilizes only 4GB of your SD card space. Login to the console with username root and password raspberry and issue the command below.

# raspi-config

Navigate to Advanced Options-> A1 Expand Filesystem Ensures that all of the SD card storage is available to the OS. The filesystem will be enlarged upon the next reboot.

3. Configure Static IP Address

Set static IP address for interface eth0.

# echo "interface eth0" >> /etc/dhcpcd.conf
# echo Continue reading

BGP Implicit and Explicit Withdraw

BGP Implicit and Explicit Withdraw are important BGP messages. Understanding these two mechanisms not only help for understanding BGP convergence but also helps for BGP path diversity.    While I was explaining BGP Add-Path in my Instructor Led CCDE course, I used the term ‘BGP Implicit Withdraw’ Then someone asked what is ‘ BGP Explicit …

Continue reading "BGP Implicit and Explicit Withdraw"

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Whither Network Engineering? (Part 1)

An article on successful writers who end up driving delivery trucks. My current reading in epistemology for an upcoming PhD seminar. An article on the bifurcation of network engineering skills. Several conversations on various slacks I participate in. What do these things have in common? Just this:

What is to become of network engineering?

While it seems obvious network engineering is changing, it is not so easy to say how it is changing, and how network engineers can survive those changes. To better understand these things, it is good to back up and take in a larger view. A good place to start is to think about how networks are built today.

Networks today are built using an appliance and circuit model. To build a network, an “engineer” (we can argue over the meaning of that word) tries to gauge how much traffic needs to be moved between different points in the business’ geographical space, and then tries to understand the shape of that traffic. Is it layer 2, or layer 3? Which application needs priority over some other application?

Once this set of requirements is drawn up, a long discussion over the right appliances and circuits to purchase to Continue reading

Response: Modchips, Hardware Implants and Bloomberg falsehoods

This video was presented at the 35C3 conference in Germany last week. The presenter is highly credible on the topic. Hardware implants and supply chain attacks have been in the news recently, but how feasible are they and what can we do about them? In this talk we’ll examine the design of a proof of […]

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